diff options
| author | Michael Jones <michaelrj@google.com> | 2024-03-27 15:09:57 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-03-27 15:09:57 -0700 |
| commit | d5f06342a3007f414c783ba42cb49453a9cee835 (patch) | |
| tree | 57d9188008a3a501527902b64bb9becda5d03574 | |
| parent | 88812819022ecff392dfc8d3f964899f63bdffdb (diff) | |
| download | llvm-d5f06342a3007f414c783ba42cb49453a9cee835.zip llvm-d5f06342a3007f414c783ba42cb49453a9cee835.tar.gz llvm-d5f06342a3007f414c783ba42cb49453a9cee835.tar.bz2 | |
[libc] add flag for FP_*LOGB0/NAN values (#86723)
These values vary by system, this flag allows you to toggle their value.
| -rw-r--r-- | libc/include/llvm-libc-macros/math-macros.h | 9 | ||||
| -rw-r--r-- | utils/bazel/llvm-project-overlay/libc/BUILD.bazel | 1 |
2 files changed, 8 insertions, 2 deletions
diff --git a/libc/include/llvm-libc-macros/math-macros.h b/libc/include/llvm-libc-macros/math-macros.h index 03c7a82..1497e32 100644 --- a/libc/include/llvm-libc-macros/math-macros.h +++ b/libc/include/llvm-libc-macros/math-macros.h @@ -31,10 +31,15 @@ #define NAN __builtin_nanf("") #define FP_ILOGB0 (-INT_MAX - 1) -#define FP_ILOGBNAN INT_MAX - #define FP_LLOGB0 (-LONG_MAX - 1) + +#ifdef __FP_LOGBNAN_MIN +#define FP_ILOGBNAN (-INT_MAX - 1) +#define FP_LLOGBNAN (-LONG_MAX - 1) +#else +#define FP_ILOGBNAN INT_MAX #define FP_LLOGBNAN LONG_MAX +#endif #ifdef __FAST_MATH__ #define math_errhandling 0 diff --git a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel index eb0afbb..acdf934 100644 --- a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel +++ b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel @@ -68,6 +68,7 @@ libc_support_library( name = "llvm_libc_macros_math_macros", hdrs = ["include/llvm-libc-macros/math-macros.h"], deps = [":llvm_libc_macros_limits_macros"], + defines = ["__FP_LOGBNAN_MIN"], ) libc_support_library( |